Want cucumbers early in 2026? Timing does the heavy lifting. Here is the plan I would use: when to raise seedlings, when to sow straight into beds, how that shifts by region, and the lunar-phase dates for anyone who likes to sync the garden with the moon.
Start with seedlings if you want a head start
For an early crop under a plastic cover, grow seedlings first. Sow 25–30 days before you expect to plant them out. Keep seedlings compact and sturdy; smaller, well-lit transplants take hold faster than lanky, overgrown ones.
Seedling timing by region (2026)
South of Russia and the Far East: sow from mid-March through early April. Move seedlings under film in late April or early May.
Central region (including the Moscow area) and the Volga region: the sweet spot is April — early to late. That sets transplanting for after May 10–15.
Northwest, the Urals, and Siberia: sow April 10–20. Transplant under film in late May or early June, once the soil warms to about +16 °C. With a heated greenhouse in these regions, you can get moving earlier: April 1–10 works well.
Lunar picks for sowing seedlings (2026)
If you track lunar phases, the standout days for sowing cucumber seedlings are April 22–23 and May 18–19. April also plays nicely on the 9th, 10th, 13–15th, 18–19th, 21st, 28th, and 29–30th. In May, good options include the 3rd, 4th, 5th, 6th, 7th, 11th, 12th, 15th, 20th, 23rd, 24th, 25th, 27th, 28th, 29th, and 30th.
Direct sowing into open ground
Sow outside once the soil reaches about +14 to +16 °C, daytime air sits around +18 to +20 °C, and the spring cold snaps have finished. Hit those benchmarks and cucumbers respond fast.
Direct-sow timing by region (2026)
South and the Far East: the second half of April or early May fits well.
Central Russia, including the Moscow area: aim for mid-May through early June. For early cultivars, you can try May 8–10.
Northwest, the Urals, and Siberia: sow in late May or during the first half of June.
Lunar picks for direct sowing (2026)
In May, the prime dates are the 1st, 18th, 19th, and 20th. Also workable: the 2nd, 3rd, 8th, 9th, 12th, 13th, 16th, 17th, 21st, 22nd, 25th, 26th, 29th, and 30th. In June, favorable days land on the 8th, 9th, and the 12–20th stretch, plus the 1st, 2nd, 3rd, 4th, 26th, and 27th. Choosing within these windows can support quick, even germination and steady early growth.